USED Strike Industries Carbon Fiber Suppressor Alignment Rods Black One Size SI-SEND-IT-STICKS. If you are new to using a suppressor we highly recommend users to get in the habit of checking for concentricity. Set of Alignment Rods are made out of carbon fiber and this set comes with rods for multiple calibers such as .223/5.56mm 7.62/.300 Blackout 8.6mm/.338 Lapua 6.5mm 9mm and .45. Use these tools to verify that your suppressor is properly aligned with the barrel of your firearm to avoid baffle strikes or other serious malfunctions or accidents. We chose to use carbon fiber for its precise and durable nature (within 0.003" straightness tolerances) making these rods perfect for use with a wide variety of firearms. Carbon material is also safer for the inner bore of your barrel compared to steel rods. These also happen to be very lightweight so taking them with you to the range isn't much of a burden at all. After installing your can simply insert your rod with the correct caliber to get a visual confirmation that the rod is centered within the suppressor bore. Specifications for Strike Industries Carbon Fiber Suppressor Alignment Rods: Manufacturer: Strike Industries Size: One Size Fabric/Material: Carbon Fiber Color: Black Features of Strike Industries Carbon Fiber Suppressor Alignment Rods Set supports multiple calibers Safely check for concentricity w/o barrel damage Precise durable and lightweight Rods are within 0.003" straightness tolerances Package Contents: Strike Industries Carbon Fiber Suppressor Alignment Rods 1X Od11.1 Rod 1X Od8.6 Rod 1X Od8.2 Rod 1X Od7.5 Rod 1X Od6.3 Rod 1X Od5.4 Rod 1X Insert Card Strike Industries SI-SEND-IT-STICKS: Carbon Fiber Suppressor Alignment Rods Black One Size